Why can animals survive with water but not food

Explanation : Regardless of its physical state, water forms the basis of all life on Earth. Water can be found as a gas, liquid, or solid depending on the environment. Approximately 70% of the surface of the Earth is covered in water. Some organisms can be formed of almost 90% water, with the human body carrying roughly 60% water. Our brains are formed of 83% water, as are the kidneys. The heart and muscles around the body are approximately 75% water, and blood is a staggering 94% water. On average, men carry around 5% more water in their bodies than women. 

All life on Earth needs water to survive. Without water, their bodies would cease to function, unable to swallow food or process nutrients. Carnivores get a lot from their prey, while herbivores take their water from plants. Insects will use the morning condensation to survive. Desert animals use a combination of all of these to survive the harsh conditions.